Brave and the Bold (1955 1st Series DC) #81
Cover by Neal Adams. "But Bork Can Hurt You!", script by Bob Haney, pencils by Neal Adams, inks by Dick Giordano and Vince Colletta.
When mercenary for hire named Bork arrives in Gotham City and realizes that he's mysteriously invulnerable, he begins a campaign to take over the city, even besting Batman in combat!
